Sash lock



W. S. HAMM Nov. 1, 1932.

SASH LOCK Filed Aprll 9, 1931 2 Sheets-Sheet Ham/7:2', w Ahum@ 2. Sheets-Sheet 2 `W. s. HAMM SASH LOCK Filed Aprila, 1951 Nov. i 1932.

Patented Nov. 1, 1932 f WILLIAM S. HAMM, OF*ELKI-IART,y INDANA, ASSGNGR TO THE ADLAKE COMPANY, OF

- GHCAGO, ILLNOIS, A CORPORATION 0F IILLENOIS Vsassi Application iled April 9,

n rihe purpose ot' this invention is to provide' an improved sash lock which may be used advantageously rn a drop type sash, occupies an inconspicuous position at the corner of the sash back out of the glazed area, is attractive in appearance, and is easy to operate.

. While the foregoing statement is indicative in a general of the lnature of thc invention, other objects and advantages will be apparent to those s i led in the art upon a full understanding of the construction, arrangement and operation of the improved lock.

One form of the invention is presented herein by way of exemplication, but it will or course be appreciated that the invention is susceptible of embodiment in other structurally modifies forms coming equally wit-linthe scope oi the appended claims.

In the accompanying drawings:

Fig. 1 is an inside face View of a drop type sash equipped with a pair of sash loclrs constructed in accordance with the vinvention ;V

Fig. 2 is a fragmentary inside tace view of the upper left hand corner ot the sash, showing the bolt-retracting lever and the lift of the lock in their normal inactive positions;

Fig. 3 is a view corresponding to Fig. 2, showing the lift swung up into its operative position;

Fig. l.lis another view corresponding to Fig. 2, showing the lift swung up into its operative position, and also showing the boltretracting lever depressed;

Fig. 5 is a plan View of the corner of the sash shown in Fig. 2;

Fig. 6 is an edge view ot the corner ol the sash shown in Fig. 2;

Fig. 7 is a vertical section, taken on the line 7 7 of Fig. 2;

Fig. 8 is a vertical section, taken on the line 8-8 of Fig. 7; and

Fig. 9 is a horizontal section, taken on the line 9Y 9 of Fig. 8.

As will be observed in the drawings, a drop type sash 10 is provided at the upper corners thereof with a pair ot locks 11 and 12, which locls die-r from each other only in that the LO CK 1931. Serial No. 528,804.

mechanisms thereof are reversed for left and right hand operation. The left hand lock 11 is shown in detail and will be described.

The lock 11 includes a vertically elongated casing 13. The casing is provided at its up- 1per end with a horizontally extending lange 14e, and 'is provided at its lower end with a downwardlyextending flange 15. The casing and flanges present a structure of inv rted Llshaped form. rlhe casing is posi# tioned against the sash in the upper corner thereof, and is secured in place by screws 16 which attach the Bauges 14 and 15' respectively to the top and side rails 17 and 18.

Theloclt is provided with a lever 19 which operates to retract a bolt 20. The lever is normally disposed in a horizontal position to one side of the casing 13 in front of the lower portion ot' the flange 14:, and is pivotally mounted within the casing on a pin 21 (see Fig. 8). The lever 19 is provided above the pivoting portion thereof with a laterally extending stud 22 which engages within a vertically elongated slot 23 in one side of the bolt 20. The bolt 20 is slidably mounted in a horizontal guideway 24 and is normally maintained with the outer end of the bolt projected from the outer end of the guidew'ay by a spring 25, which spring is compressed between the inner end of the bolt and an abutment 26 carried by the inner end of the guideway. The bolt is preferably provided intermediate its ends withr a horizontally elongated slot 27 for the accomn modation of the upper attaching screws 16. The spring 25, in addition to projecting the bolt20, also serves to normally maintainV the bolt-retracting lever V19V ina horizontal position. v

The. lock is also provided with a lift 28 which, in its inactive position, projects downwardly from the casing 13 at right angles tothe lever 19. The lift is pivotally mounted within the casing on a pin 29 and is normally maintained in its downwardly projecting l' position by means of a spring 30, which springengagesagainst a pin 31 on the lift and presses the latter against a limiting abutment-32 on the casing, When the lock isto bezoperated, the lift 28 is first/turned 90o into a horizontal position into engagement with a stop 33 on the casing, in which position (see Fig. 3) the lift is in spaced parallel relation to the bolt-retracting lever 19 in readiness to afford a finger purchase for use both in depressing the lever 19 (see Fig. and in raising the sash.

From the foregoing it will be understood that the lever 19 and the lift 28, in the normal inactive positions of the same, are disposed at right angles to each other in closely7 bordering parallel relation to the edges of the glazed area of the sash. This permits the glass to be cleaned without difficulty at the location of the locks, affords unobstructed vision at the corners of the sash, and gives an unusually attractive appearance to the locks.

The novel features which constitute the present invention, while particularly applicable to loclrs used on drop type sash, are

also applicable to locks used on other types of sash.

I claim:

1. In combination, a narrow-railed sheet metal drop type sash, a casing attached to the sash at one of the upper corners thereof, a bolt-retraeting lever pivotally mounted in the casing and projecting horizontally therefrom along the top rail of the sash in closely bordering relation to the top edge of the glazing area, resiliently yieldable means for resisting pivotal movement of the lever, a lift pivotally mounted in the casing and projecting downwardly therefrom along the adjacent side rail in closely bordering relation to the adjacent side edge of the glazing area, and resiliently yieldable means for resisting pivotal movement of the lift.

2. In combination, a drop type sash, a casing attached to the sash at one of the upper corners thereof, a bolt-retracting lever pivotally mounted in the casing and extending therefrom along the top rail of the sash, and a lift also pivotally mounted in the casing and extending therefrom along the adjacent side rail of the sash.

3. In combination, a drop type sash, a casing attached to the sash at one of the upper corners thereof, a bolt-retracting lever pivotally mounted in the casing and extending therefrom along the top rail of the sash, and a lift also pivotally mounted in the casing and extending therefrom along the adjacent side rail of the sash, said lift being movable. from an inoperative position outside of the glazing area of the sash into an operative position within such glazing area.

4. The combination, with a drop type sash, of a lock which is attached to o-ne of the upper corners of the sash and is provided with a pivoted lift which is movable in a plane parallel to the plane of the sash from a vertical position in front of the side rail of the sash outside of the glazing area into a horizontal position within the glazing area,fand

5. The combination, with a. drop type sash,

of a lock which is attached to one of the upper corners of the sash and is provided with a pivoted lift which is movable in a planeV parallel to the plane of the sash from a vertical position in front of the side rail of the sash outside of the glazing area into a horizontal' position within the glazing area, means for preventing the lift from being raised above a substantially horizontal position, and a spring for normally maintaining the lift in a vertical position in front of the side rail of the sash.

6. In a sash lock for application to one of the upper corners of a drop type sash, a generally L-shaped plate characterized by a vertically elongated housing, a downwardly extending attaching flange at the lower end of the housing and a horizontally extending attaching flange at the upper end of the'housing, a bolt-retracting lever pivotally mounted in the upper portion of the housing and projecting horizontally therefrom into a position in front of the upper attaching plate, and a lift pivotally mounted in theV lower portion of the housing and projecting downwardly therefrom in front of the lower attaching flange, said housing being slotted for a distance above the lift in the side thereof from which the bolt-retracting lever projects, whereby to permit the lift to be swung upwardly about its pivot into a position wherein it projects from the side of the casing at a point beneath the lever.

In testimony whereof I have hereunto subscribed my name.

WILLIAM S. HAMM. 

